How Is the Contract Delivery Price and Option Strike Price Calculated?
When coin-based margin delivery contracts, USDT-margined delivery contracts, and coin-based options contracts reach expiration, the platform calculates the weighted average of the index price in the last hour before expiration to determine the delivery price for delivery contracts and the strike price for options contracts. It then completes cash settlement for all users holding those contracts—in other words, the profit or loss from delivery or exercise is transferred to the user's account. If there are still unfilled orders for the contract in the account at the time of delivery/exercise, those unfilled orders will be canceled, and the entire position will be settled (exercised) at the delivery price (strike price).
In extreme market conditions, the user's account balance may go negative after delivery/exercise is complete. This occurs when delivery/exercise losses exceed the account's capacity. The risk reserve will cover the negative account balance.
Disclaimer
This article may contain product-related content that does not apply to your region. This article is intended solely to provide general information and makes no representations as to the accuracy or completeness of any information contained herein. The views expressed in this article are those of the author and do not reflect the opinions of OKX. This article is not intended to provide any advice, including but not limited to: (i) investment advice or investment recommendations; (ii) offers or solicitations to buy, sell, or hold digital assets; or (iii) financial, accounting, legal, or tax advice. Holding digital assets (including stablecoins) involves a high level of risk and may be subject to significant price fluctuations, potentially becoming worthless. You should carefully consider whether trading or holding digital assets is appropriate for you based on your financial situation. Please consult your legal/tax/investment professional regarding questions specific to your circumstances. The information contained in this article (including market data and statistics, if applicable) is provided for general reference purposes only. While all reasonable precautions have been taken in preparing this data and these charts, we assume no responsibility for any factual errors or omissions expressed herein. © 2025 OKX. This article may be reproduced or distributed in its entirety or in excerpts of 100 words or fewer, provided that such use is non-commercial in nature. Any reproduction or distribution of the article in its entirety must prominently state: "This article is copyright © 2025 OKX, used with permission." Permitted excerpts must cite the article title and include attribution, e.g., "Article Title, [Author Name (if applicable)], © 2025 OKX". Some content may be generated or assisted by artificial intelligence (AI) tools. Derivative works and other uses of this article are not permitted.
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